| Presentation | 2004/12/9 Study on the Motion of High-Intensity Aerial Ultrasonic Waves Entering Liner Holes Opening Both Ends : The Hole with a Rigid Plane near by One Opening End Norikazu Yurugi, Youichi Ito, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We experimentally investigated the acoustic characteristics that resulted, inside and outside the hole open at both ends, when intensive aerial convergence ultrasonic waves (frequency : 19.65 kHz ; wavelength : 17.6 mm) entered the linear hole with a diameter smaller than the wavelength of the acoustic wave. Each hole used in the experiment had a rectangular cross section of 5mm width, and a rigid plane was placed in the neighborhood of the opening of the hole. The distribution of sound pressure occurred inside each hole was measured by a probe microphone composed of a probe tube of 25mm length and 1.0 mm diameter. In addition, the standing wave ratio of formed sound pressure distribution was investigated. From above investigation, the optimum condition of the length of the hole for producing the high intensity sound field on the rigid plane was obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic wave entering hole / aerial ultrasonic wave / convergent sound wave / high-intensity sound field / probe microphone / measurement of sound pressure |
| Paper # | US2004-74 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2004/12/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on the Motion of High-Intensity Aerial Ultrasonic Waves Entering Liner Holes Opening Both Ends : The Hole with a Rigid Plane near by One Opening End |
| Sub Title (in English) | |
| Keyword(1) | acoustic wave entering hole |
| Keyword(2) | aerial ultrasonic wave |
| Keyword(3) | convergent sound wave |
| Keyword(4) | high-intensity sound field |
| Keyword(5) | probe microphone |
| Keyword(6) | measurement of sound pressure |
| 1st Author's Name | Norikazu Yurugi |
| 1st Author's Affiliation | Faculty of Science and Technology, Nihon University() |
| 2nd Author's Name | Youichi Ito |
| 2nd Author's Affiliation | Faculty of Science and Technology, Nihon University |
| Date | 2004/12/9 |
| Paper # | US2004-74 |
| Volume (vol) | vol.104 |
| Number (no) | 508 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |